Timing Library Format

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Timing Library Format (abbreviated TLF) is a file format used by electronic design automation tools. A TLF file is a text file in nature[1] and contains timing and logical information about a collection of cells (circuit elements).

The TLF file contains information on the timing and power parameters of the cell library. It is used to determine delays of I/O ports and interconnects of the final design.


  1. ^ "Timing Library Format Reference" (PDF). Cadence Design Systems. October 2000. Retrieved 6 May 2021.